Notebook computer for performing part of power-on self-test according to proximity sensor before displaying image after power switch is triggered

1. A notebook computer, comprising: a display; a power switch; a proximity sensor disposed adjacent to the power switch for sensing an object approaching the power switch to output a sensing signal; a memory used for storing a basic input output system (BIOS); a control unit used for performing at least a part of the power on self test (POST) according to the sensing signal and the BIOS before the display shows an image, and controlling the display to display the image after the power switch is triggered.

2. The notebook computer according to claim 1 , wherein if the proximity sensor has been sensing an object approaching the power switch for a first predetermined time, then the control unit performs at least a part of the POST according to the sensing signal and the BIOS before the display shows an image.

3. The notebook computer according to claim 2 , wherein if the power switch has not been triggered for a second predetermined time larger than the first predetermined time, then the control unit performs a shutdown process.

4. The notebook computer according to claim 3 , wherein the second predetermined time may be set as the completion time of the POST.

5. The notebook computer according to claim 1 , wherein in a sleep state, the control unit performs at least a part of the POST according to the sensing signal and the BIOS before the display shows an image.

6. The notebook computer according to claim 1 , wherein the control unit performs at least a part of the POST according to the sensing signal and the BIOS and loads in an operating system from a hard disc before the display shows an image.

7. The notebook computer according to claim 6 , wherein if the power switch has not been triggered for a third predetermined time, then the control unit performs a hard disc shutdown process, and the third predetermined time may be set as the time starting from booting the computer until loading in the operating system.

8. The notebook computer according to claim 7 , wherein if the power switch has not been triggered for a fourth predetermined time larger than the third predetermined time, then the control unit performs a shutdown process.

9. The notebook computer according to claim 1 , further comprising: a base on which the proximity sensor and the power switch are disposed adjacent to each other; an upper cover, wherein when the upper cover is lifted from the base, the control unit performs at least a part of the POST according to the sensing signal and the BIOS before the display shows an image.

10. The notebook computer according to claim 9 , wherein after the upper cover is lifted from the base, if the power switch has not been triggered for a fifth predetermined time, then the control unit performs a shutdown process.

11. The notebook computer according to claim 1 , wherein the control unit comprises: a central processor coupled to the display; an input/output controller (I/O controller) coupled to the power switch, the proximity sensor, the memory and the central processor.

12. The notebook computer according to claim 11 , wherein the I/O controller may be realized by an embedded controller (EC), a platform controller hub (PCH) or a fusion controller hub (FCH).